Sunglasses you own and wear thread

This is a discussion on Sunglasses you own and wear thread within Shifting gears, part of the Around the Corner category; I own Polaraid Aviator, Miami Blues aviator, fast track aviator, fast track biker glass, fast track casual. I owned them ...

Got this Link via a Friend, who was searching for a new pair. He told Me that He had contacted the seller asking whether these are genuine? and the Seller said YES, they are genuine and If He felt they are fake or He is not satisfied with the product then He can send back the product and get 100% money back (Point to note that the seller is a powerseller and has a very good feedback)

^^ I would be very careful with such deals. The number of fake Ray Ban Aviators available in the market is huge and some are very good copies as well. I would suggest buying from a store where he can atleast check and get a warranty.

What is Glare?
Glare is the harsh, high intensity light that falls on your eyes as a result of reflections from other objects. If somebody users a mirror to direct sun-rays to your eyes, what you see is a ‘glare’. Other cases where you can experience glare: Skiing (reflection from snow), Desert (reflection from the hot sand), sailing (reflection from the water), reflection from glass such as windshield, window panes, etc.

How is normal custom-made ‘anti-glare’ glass produced?
Anti-glare coating is ‘painted’ on the glass. This coating ‘easily’ wears away with normal use such as wiping with a cloth, touching with hands, placing in pocket along with other objects, etc

Would we have glare from a computer screen?
If you have light sources such as open windows or lamps directly behind you, you could get a glare as a result of reflections from the computer screen. The best way to prevent this is to remove light sources behind you, and switch on the lights on the ceiling (not wearing anti-glare glasses!!!). If the screen is too bright, you could reduce the brightness/contrast.

What is the harmful effect of computer screens?
Radiations from a CRT computer screen are mainly Ultraviolet-A, Ultraviolet-B, Infra-red and small amount of X-rays.

Ultraviolet-A: prolonged exposure causes cataract, though there are differences of opinion on this.
Ultraviolet-B: prolonged exposure causes cataract, no doubt.
Infrared: prolonged exposure causes cataract (By the way, cataract is the condition in which the lens of your eyes darken, so the only solution is to get it replaced by an artificial lens).
X-rays: cause heating and damage to cells (though most CRT screens have very minimal, almost nil radiation beyond 85 centimeter)

Besides, all these rays are known to cause fatigue, even if only the eyes are exposed.

In that case, what glasses do you need to work on CRT screen?
You need glasses that block atleast 99% of UV-A, UV-B and Infra-red rays. Good brands of Sun-glasses have this protection (if you don’t like the dark shade of Sun-glasses, you could try the photo-chromatic option). Some brands of Sun-glasses also have plain glasses with these protections, but make sure that it’s a reliable brand (it is also advised to buy glasses that have protective substances embedded, rather than just a coating).

Anything else about plain-glasses?
The ‘power’ of a plain-glass needs to be exactly zero, else your eye-sight would be affected in the long-run.

Note:
If you are really particular about custom-made plain-glasses, polycarbonate lenses are a good option, as they have inbuilt UV protection, and are more break resistant. Reputed branded lenses have a good range of Polycarbonate lenses.

What about people like me who spend the whole day in front of the computer as part of our job?

Yes radiation from the PC display does cause strain to the human eyes.
Hence it is recommended to take short breaks after prolonged exposure to the PC.Also, specially coated glasses can be used.An ophthalmologist would suggest the proper shades that can be used for driving as well as for protection against PC radiation.